Duo Security incident

[Multiple Deployments] Authentication Delays for Duo SSO Logins using Active Directory

Minor Resolved View vendor source →

Duo Security experienced a minor incident on May 19, 2025 affecting SSO and SSO and 1 more component, lasting 1h 22m. The incident has been resolved; the full update timeline is below.

Started
May 19, 2025, 12:24 PM UTC
Resolved
May 19, 2025, 01:46 PM UTC
Duration
1h 22m
Detected by Pingoru
May 19, 2025, 12:24 PM UTC

Affected components

SSOSSOSSOSSOSSOSSOSSOSSOSSOSSO

Update timeline

  1. investigating May 19, 2025, 12:24 PM UTC

    We are currently investigating an issue causing intermittent authentication delays for Duo SSO logins using Active Directory as an authentication source. Please check back here or subscribe to updates for any changes.

  2. investigating May 19, 2025, 12:30 PM UTC

    We are currently investigating an issue causing intermittent authentication delays for Duo SSO logins using Active Directory as an authentication source. Please check back here or subscribe to updates for any changes.

  3. monitoring May 19, 2025, 01:19 PM UTC

    We have identified that the issue causing intermittent authentication delays for Duo SSO logins using Active Directory affected a small subset of customers and has since resolved as it was caused by outside factors. We are continuing to monitor for any further delays at this time.

  4. resolved May 19, 2025, 01:46 PM UTC

    After continued monitoring, we can confirm that the issue causing intermittent authentication delays for Duo SSO logins using Active Directory, affecting a small subset of customers, has been resolved.